Won't go into 4 wheel drive - Toyota Nation Forum : Toyota Car and Truck Forums


» Auto Insurance
» Featured Product
Advertisement
Wheel & Tire Center

Go Back   Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Hilux (Pickup) Forum > 89-95 Toyota Pickup/Hilux

89-95 Toyota Pickup/Hilux Discussion forum for the 89-95 Toyota Pickup/Hilux owners. NEW!

ToyotaNation.com is the premier Toyota Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-22-2009, 08:37 AM   #1 (permalink)
New TN User
 
Join Date: Jan 2009
Location: mass.
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View stabulus's Photo Gallery
Won't go into 4 wheel drive

I wonder if anyone has some insight regarding the engagement of 4wd system or lack there of. When I move the lever to 4wd hi it doesn't engage, all I get is the sound of electrical contacts coming from somewhere behind the dash. Any ideas?
stabulus is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-22-2009, 10:35 AM   #2 (permalink)
Soylent Green sales
 
fourwd1's Avatar
 
Join Date: Jul 2006
Location: the Socialist State of Maryland
Posts: 8,116
Gameroom cash: $874655
Thanks: 5
Thanked 457 Times in 439 Posts
Lifetime Supreme Member
iTrader Score: 1 reviews
View fourwd1's Photo Gallery
What year?
What engine?
Auto or manual transmission?
ADD?
Auto or manual hubs?
What about 4LOW?
__________________
SEARCH before asking
84 4Runner rockcrawler - ARBed 5.29's, 36" TSLs, dual t-cases w/ 4.7 crawler gear, Chevys, 30 spline Marlins
83 p/u trail rig - Buick 231 V6, Weiand intake, Holley 4 bbl, TH-350 auto w/700R4 low gearset, dual tanks ...
89 4Runner - stock
http://www.cardomain.com/id/fourwd1
fourwd1 is online now   Reply With Quote Quick reply to this message
Old 01-22-2009, 12:52 PM   #3 (permalink)
New TN User
 
Join Date: Jan 2009
Location: mass.
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View stabulus's Photo Gallery
Sorry for not including info in initial post. 1992,v6,manuel, I don't know what ADD is,auto hubs and it won't go into 4low either.
stabulus is offline   Reply With Quote Quick reply to this message
Old 01-22-2009, 03:44 PM   #4 (permalink)
Soylent Green sales
 
fourwd1's Avatar
 
Join Date: Jul 2006
Location: the Socialist State of Maryland
Posts: 8,116
Gameroom cash: $874655
Thanks: 5
Thanked 457 Times in 439 Posts
Lifetime Supreme Member
iTrader Score: 1 reviews
View fourwd1's Photo Gallery
ADD = Automatic Differential Disconnect, a system they had in the early 90's.

If you have auto hubs you don't have ADD, unless a previous owner put them on. With auto hubs you have to drive a bit for them to engage. If they haven't been maintained over the years, they tend to stop working.

Look here http://www.off-road.com/trucks4x4/ar....jsp?id=399612 to see if maybe you have ADD and auto hubs.

When you put it in 4WD (HI or LO) does the front drive shaft turn?
Does the 4WD dash indicator light up?
When you put in LO range, does it actually go into low? You should be able to feel the difference, even if 4WD (the front axle) isn't working.
__________________
SEARCH before asking
84 4Runner rockcrawler - ARBed 5.29's, 36" TSLs, dual t-cases w/ 4.7 crawler gear, Chevys, 30 spline Marlins
83 p/u trail rig - Buick 231 V6, Weiand intake, Holley 4 bbl, TH-350 auto w/700R4 low gearset, dual tanks ...
89 4Runner - stock
http://www.cardomain.com/id/fourwd1
fourwd1 is online now   Reply With Quote Quick reply to this message
Old 01-22-2009, 04:25 PM   #5 (permalink)
Procrastinating on TN
 
knj27's Avatar
 
Join Date: Feb 2008
Location: Sunny AZ
Posts: 3,459
Thanks: 23
Thanked 18 Times in 7 Posts
iTrader Score: 0 reviews
View knj27's Photo Gallery
so are you saying you can't physically get the lever to pop into any of the 4wd positions? or the lever is fine and it just doesn't engage down below? Try putting it in reverse and rolling back just a bit while you try to shift the 4wd, that seems to work for a lot of sticky t-cases.
__________________

'93 Pickup 4x4 22R-E
knj27 is offline   Reply With Quote Quick reply to this message
Old 01-24-2009, 11:45 AM   #6 (permalink)
New TN User
 
Join Date: Jan 2009
Location: mass.
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View stabulus's Photo Gallery
The front driveshaft does turn, the 4wd dash light doesn't come on, it does go into low but 2 wheel drive. I've owned the truck since new so I don't think it has ADD. Oddly enough I can't move the 4wd shift lever when moving, I can only move lever into the 4wd position when stopped. I've tried the usual steps to engage but it won't go in.
stabulus is offline   Reply With Quote Quick reply to this message
Old 07-09-2009, 08:35 AM   #7 (permalink)
Alex
 
Join Date: Jun 2009
Location: Newfoundland
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View ADJSmyth's Photo Gallery
Quote:
Originally Posted by stabulus View Post
The front driveshaft does turn, the 4wd dash light doesn't come on, it does go into low but 2 wheel drive. I've owned the truck since new so I don't think it has ADD. Oddly enough I can't move the 4wd shift lever when moving, I can only move lever into the 4wd position when stopped. I've tried the usual steps to engage but it won't go in.

Did you ever resolve this problem?? I Have a 94 22re pickup wit the same problem. Im not seeing the light when i shift into 4 high or low. The low gears work fine though in low.
ADJSmyth is offline   Reply With Quote Quick reply to this message
Old 07-10-2009, 09:35 AM   #8 (permalink)
New TN User
 
Join Date: Jan 2009
Location: mass.
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View stabulus's Photo Gallery
No I haven't. It turns out it is equipped with ADD. I've looked at it several times, but haven't determined what has failed. If anyone has any suggestions I'd be glad to hear about them. Thanks
stabulus is offline   Reply With Quote Quick reply to this message
Old 07-10-2009, 03:46 PM   #9 (permalink)
Official TN Member
 
rod.s's Avatar
 
Join Date: May 2009
Location: NL CANADA
Posts: 119
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
View rod.s's Photo Gallery
See my post concerning my ADD PROBLEM that I had with my truck, a 1994 toyota 4x4. My ADD was engaged all the time, so I purchased a set of manual freewheeling hubs and I just finished installing them and everything now works fine. Here is the link on how to disable the ADD system. You will have to do this as it seems your ADD is not engaging the front axle. If you jumper the two wires together on your ADD actuator on the front axle, the four wheel drive light will come on and off with your transfer case selector.http://www.4x4wire.com/toyota/tech/add/
rod.s is offline   Reply With Quote Quick reply to this message
Old 07-13-2009, 02:04 PM   #10 (permalink)
New TN User
 
Join Date: Jan 2009
Location: mass.
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View stabulus's Photo Gallery
Thanks to rod.s and ADJSmyth for getting me thinking about this problem again. I sort of put it on the back burner what with summer and all. Anyway I found the problem, vacuum tank had a rust hole in it. I repaired the tank and put it back in service and ba-da-bing I got 4wheel drive back.
stabulus is offline   Reply With Quote Quick reply to this message
Old 09-29-2009, 08:51 PM   #11 (permalink)
New TN User
 
Join Date: Oct 2008
Location: Alaska
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View AAhab's Photo Gallery
Quote:
See my post concerning my ADD PROBLEM that I had with my truck, a 1994 toyota 4x4. My ADD was engaged all the time, so I purchased a set of manual freewheeling hubs and I just finished installing them and everything now works fine. Here is the link on how to disable the ADD system. You will have to do this as it seems your ADD is not engaging the front axle. If you jumper the two wires together on your ADD actuator on the front axle, the four wheel drive light will come on and off with your transfer case selector.http://www.4x4wire.com/toyota/tech/add/
rod.s, when you say engaged all of the time do you mean the wheels were locked to the drivetrain or disconnected from?
I have this same issue and have been tracing vacuum lines and checking voltages and everything seems to be in order. I am puzzled. There was a hole in one line that had been taped by the prev. owner. Once that was repaired there was still no 4wd light like I was hoping for. Anyways, I am thinking that locking the ADD into 4wd might be my easiest option since I will be in there for the cv axles anyways. Winter here is 4wheel from oct-apr that should give me plenty of time to hunt down some manual hubs.

ETA: Are there any sources for manual hubs? It might be difficult for me to get a pair of aisins from a junked pickup.

Last edited by AAhab; 09-29-2009 at 08:53 PM.
AAhab is offline   Reply With Quote Quick reply to this message
Old 09-30-2009, 12:13 AM   #12 (permalink)
Supafly
 
Jayota's Avatar
 
Join Date: Jan 2007
Location: B.C Canada
Posts: 4,402
Gameroom cash: $257565
Thanks: 4
Thanked 93 Times in 90 Posts
Lifetime Supreme Member
iTrader Score: 0 reviews
View Jayota's Photo Gallery
Quote:
Originally Posted by fourwd1 View Post
ADD = Automatic Differential Disconnect, a system they had in the early 90's.

If you have auto hubs you don't have ADD, unless a previous owner put them on. With auto hubs you have to drive a bit for them to engage. If they haven't been maintained over the years, they tend to stop working.

Look here http://www.off-road.com/trucks4x4/ar....jsp?id=399612 to see if maybe you have ADD and auto hubs.

When you put it in 4WD (HI or LO) does the front drive shaft turn?
Does the 4WD dash indicator light up?
When you put in LO range, does it actually go into low? You should be able to feel the difference, even if 4WD (the front axle) isn't working.

True auto hubs were never available after 88 (or 87).

ADD hubs are simply flanges that keep the cv axles constantly engauged to the wheel.
__________________
1991 Pickup - 3vze - 4x4 - SR5 - 5sp- 270k.
Currently in street DD mode

www.cardomain.com/ride/2572486
Jayota is offline   Reply With Quote Quick reply to this message
Old 09-30-2009, 03:53 AM   #13 (permalink)
Official TN Member
 
rod.s's Avatar
 
Join Date: May 2009
Location: NL CANADA
Posts: 119
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
View rod.s's Photo Gallery
What I found with my truck was the ADD actuator on the front axle was engaged in the on position all the time regardless of vacuum being there or not. I found it easier and most benefical to just bolt on a set of manual hubs(takes about a couple of hours) to correct this problem. If your actuator is not engaging at all you can just follow the instructions in the article posted above to keep it engaged at all times and locate a set of manual hubs for it, I found mine in an auto scrap yard,. You can also try ebay, not sure of what year trucks that will work with each other.

Last edited by rod.s; 09-30-2009 at 04:28 AM.
rod.s is offline   Reply With Quote Quick reply to this message
Old 10-01-2009, 04:10 PM   #14 (permalink)
New TN User
 
Join Date: Oct 2008
Location: Alaska
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View AAhab's Photo Gallery
Yeah my actuator seems to be stuck in the off position after troubleshooting and repairs and getting vacuum all set at the actuator, it still fails to actuate. I read the article and it sounds pretty straight forward so I think I will give it a try. Sourcing a set of manual hubs will be the difficult part for me. As far I know any IFS hubs will work with any IFS system. The difference comes with the splines on IFS vs. Solid axles. Someone please correct me if I am wrong. Thanks for the help. Does anyone know of a source for aftermarket hubs if the search is devoid of fruit.
AAhab is offline   Reply With Quote Quick reply to this message
Old 10-01-2009, 05:48 PM   #15 (permalink)
Official TN Member
 
rod.s's Avatar
 
Join Date: May 2009
Location: NL CANADA
Posts: 119
Thanks: 0
Thanked 3 Times in 3 Posts
iTrader Score: 0 reviews
View rod.s's Photo Gallery
http://cgi.ebay.ca/1986-1995-TOYOTA-...d=p3286.c0.m14
rod.s is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Hilux (Pickup) Forum > 89-95 Toyota Pickup/Hilux

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 01:29 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
ToyotaNation.com is an independent Toyota/Lexus enthusiast website. ToyotaNation.com is not sponsored by or in any way affiliated with Toyota Motor Sales, USA, Inc. The Toyota, Lexus and Scion names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.